Display module stack structure and display device

Abstract

The present disclosure provides a display module stack structure and a display device. The display module stack structure includes: a flexible display panel module including a light-exiting surface and a back surface opposite to the light-exiting surface; a polarization layer stacked on one side of the light-exiting surface of the flexible display panel module; a first adhesive layer stacked on one side of the polarization layer away from the flexible display panel module; a protection cover plate stacked on one side of the first adhesive layer away from the flexible display panel module; a second adhesive layer stacked on one side of the back surface of the flexible display panel module; a protection layer stacked on one side of the second adhesive layer away from the flexible display panel module; and a resilient layer stacked on one side of the protection layer away from the second adhesive layer.

What is claimed is: 
     
       1. A display module stack structure, comprising:
 a flexible display panel module comprising a light-exiting surface and a back surface opposite to the light-exiting surface; 
 a polarization layer stacked on one side of the light-exiting surface of the flexible display panel module; 
 a first adhesive layer stacked on one side of the polarization layer away from the flexible display panel module; 
 a protection cover plate stacked on one side of the first adhesive layer away from the flexible display panel module; 
 a second adhesive layer stacked on one side of the back surface of the flexible display panel module; 
 a protection layer stacked on one side of the second adhesive layer away from the flexible display panel module; and 
 a resilient layer stacked on one side of the protection layer away from the second adhesive layer, wherein the resilient layer is a stainless steel sheet. 
 
     
     
       2. The display module stack structure according to  claim 1 , wherein the polarization layer has a thickness of 100 μm to 110 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 2.0×10 9  pa to 2.8×10 9  pa. 
     
     
       3. The display module stack structure according to  claim 1 , wherein the first adhesive layer has a thickness of 45 μm to 55 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 3×10 4  pa to 3.6×10 4  pa. 
     
     
       4. The display module stack structure according to  claim 1 , wherein the protection cover plate has a thickness of 90 μm to 110 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 5.19×10 9  pa to 5.67×10 9  pa. 
     
     
       5. The display module stack structure according to  claim 1 , wherein the second adhesive layer has a thickness of 11 μm to 15 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 1.7×10 5  pa to 2.0×10 5  pa. 
     
     
       6. The display module stack structure according to  claim 1 , wherein the protection layer has a thickness of 45 μm to 55 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 3.0×10 9  pa to 3.5×10 9  pa. 
     
     
       7. The display module stack structure according to  claim 1 , wherein the resilient layer has a thickness of 90 μm to 100 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 1.6×10 11  pa to 1.9×10 11  pa. 
     
     
       8. The display module stack structure according to  claim 1 , wherein the second adhesive layer is made of at least one of a styrene-acrylonitrile copolymer, a styrene-isoprene-styrene block copolymer and a styrene-butadiene-styrene block copolymer. 
     
     
       9. The display module stack structure according to  claim 1 , wherein the protection layer is made of polyimide. 
     
     
       10. The display module stack structure according to  claim 1 , wherein the first adhesive layer is made of one or more of silicone, acrylic resin, unsaturated polyester, polyurethane and epoxy resin. 
     
     
       11. The display module stack structure according to  claim 1 , wherein the protection cover plate is a single-layer glass cover plate, a single-layer plastic cover plate, a lamination structure comprising at least two plastic film layers, or a lamination structure comprising a plastic substrate and a glass substrate. 
     
     
       12. The display module stack structure according to  claim 1 , wherein the flexible display panel module comprises a flexible display panel and a touch panel, and each of the flexible display panel and the touch panel comprises an inorganic film layer. 
     
     
       13. The display module stack structure according to  claim 12 , wherein the flexible display panel comprises a base substrate, an electroluminescent layer formed on the base substrate, and an encapsulation layer for encapsulating the electroluminescent layer, and the inorganic film layer is comprised at least in the encapsulation layer. 
     
     
       14. A display device, comprising the display module stack structure according to  claim 1 . 
     
     
       15. The display device according to  claim 14 , wherein the polarization layer has a thickness of 100 μm to 110 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 2.0×10 9  pa to 2.8×10 9  pa. 
     
     
       16. The display device according to  claim 14 , wherein the first adhesive layer has a thickness of 45 μm to 55 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 3×10 4  pa to 3.6×10 4  pa. 
     
     
       17. The display device according to  claim 14 , wherein the protection cover plate has a thickness of 90 μm to 110 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 5.19×10 9  pa to 5.67×10 9  pa. 
     
     
       18. The display device according to  claim 14 , wherein the second adhesive layer has a thickness of 11 μm to 15 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 1.7×10 5  pa to 2.0×10 5  pa. 
     
     
       19. The display device according to  claim 14 , wherein the protection layer has a thickness of 45 μm to 55 μm in a direction perpendicular to the light-exiting surface and an elastic modulus of 3.0×10 9  pa to 3.5×10 9  pa.